CN103007677A - Movable desorption and regeneration system and method for active coke - Google Patents
Movable desorption and regeneration system and method for active coke Download PDFInfo
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- CN103007677A CN103007677A CN2012105646073A CN201210564607A CN103007677A CN 103007677 A CN103007677 A CN 103007677A CN 2012105646073 A CN2012105646073 A CN 2012105646073A CN 201210564607 A CN201210564607 A CN 201210564607A CN 103007677 A CN103007677 A CN 103007677A
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Abstract
The invention provides a movable desorption and regeneration system for active coke, which comprises a desorption reaction tower, wherein the desorption reaction tower comprises a feeding device, a gas purging bin for purging the active coke, a microwave heating bin for heating the active coke, a regeneration gas guide bin for desorbing SO2 adsorbed in the active coke, a cooling device for cooling the regenerated active coke, and a discharge device for discharging the regenerated active coke from the desorption reaction tower; and the feeding device, the gas purging bin, the microwave heating bin, the regeneration gas guide bin, the cooling device and the discharge device are sequentially connected from the top down. The invention further discloses a method of using the system to perform movable desorption and regeneration on the active coke. The system can heat the interior and the exterior of the active coke simultaneously, quickly and uniformly, and can reduce the temperature required for the regeneration of the active coke, the less active coke is consumed in a regeneration process, and the continuous on-line regeneration of the active coke is realized.
Description
Technical field
The invention belongs to filed of flue gas purification, particularly, relate to a kind of activated coke movable desorption regenerative system and method thereof.
Background technology
China's primary energy contains S0 take coal as main in the flue gas of the industrial furnaces such as coal-burning power plant, metallurgical works, coal-burning boiler factory, waste incineration discharging and the waste gas
2, S0
3, N0x, heavy metal ion, harmful smoke contamination thing form severe contamination, affect our production and life, situation is very severe; Simultaneously China large agricultural country still not needs a large amount of sulfuric acid and sulphur to produce chemical fertilizer, but the poor sulphur of China, annual cost huge fund is from external imported sulphur; And the coal of China is distributed in the water-deficient area, Midwest more.Therefore, need to a kind ofly can carry out removing integrated the associating to multiple harmful exhaust, reclaim simultaneously the sulphur resource, and the dry method flue gas purification techniques of water saving, realize the benign cycle of recycling economy and sustainable development.
The activated charcoal desulfur technology is to grow up the sixties in last century, with the characteristics of the adsoption catalysis of activated coke wide spectrum, SO in the adsorption cleaning flue gas
2, catalytic decomposition NOx has the smoke comprehensive purifying technology that removes heavy metal and dust simultaneously concurrently, and the activated charcoal regeneration of adsorbing sulfur dioxide is rear reusable, obtains simultaneously sulphur resource sulfur dioxide gas, is convenient to recycling.This technology does not consume fresh water (FW), is fit to water resource and lacks the area.And having good environmental-protecting performance, the discarded object that produces is few, can not produce secondary pollution to environment, at home and abroad is used widely.
Activated coke cigarette absorption regeneration know-why: utilize the characterization of adsorption of activated coke and catalysis characteristics to make SO in the flue gas
2, the steam in the flue gas and oxygen reaction generate H
2SO
4Be adsorbed on the surface of activated coke, realize the absorption of activated coke.Absorption H
2SO
4Activated coke through thermal regeneration, discharge high concentration SO
2Gas is realized the regeneration of activated coke.Activated coke after the regeneration recycles, high concentration SO
2Gas can be processed into the multiple chemical products such as sulfuric acid, elemental sulfur.Following chemical reaction occurs in the activated coke regenerative process:
2H
2SO
4+C→2SO
2+CO
2+2H
2O
But activated coke regeneration techniques Effective Raise activated coke recycle efficient, reduce production costs, yet, activated coke regeneration is the operating unit of activated coke loss maximum in three operating units in the activated coke desulfurization, both comprised chemical wear, also comprised mechanical loss, if can not reduce loss, the raising regeneration usefulness of activated coke in the regenerative process, then can reduce the desulfuration efficiency of whole active coke desulphurizing technology, increase desulphurization cost.Therefore reducing the consumption of activated coke regenerative process, is one of key that reduces the active coke desulphurizing cost.
For solving the problem of above-mentioned existence, the present domestic following active coke regeneration device that mainly exists:
Application number: 02112580.5, patent name: moving desorptive equipment for activated coke, it is a kind of device that the activated coke of adsorbing sulfur dioxide is carried out regenerative recovery that this patent of invention discloses a kind of moving desorptive equipment for activated coke, this device is from top to bottom by the import warehouse, imported valve, the import transitional storehouse, heating cabinet, reaction warehouse, the cooling storehouse, the outlet transitional storehouse, outlet valve sequentially links to each other and forms, between the outer wall of the above each several part of outlet transitional storehouse, be equipped with heat-barrier material with upper, the outer wall of lower each several part is isolated from each other, in heating cabinet, be provided with the heat exchanger of heating, in the cooling storehouse, be provided with cooling heat exchanger, heat and be communicated with by heater between the top of heat exchanger bottom and cooling heat exchanger, heat and be communicated with by circulating pump between the bottom of top and cooling heat exchanger of heat exchanger, in reaction warehouse and the top of heating cabinet be equipped with blast pipe and blast pipe, this blast pipe links to each other with aspiration pump.The main body of this desorption apparatus mainly is made of heating cabinet and cooling storehouse, adopts the mode of indirect, has solved the regeneration problem of activated coke, has realized the reasonable use of the energy, has higher desorption performance.
But, the used heat exchange heating technique that is heated to be of this technology, only can carry out the heat exchange heating to the activated coke surface, can't effectively heat inside activated coke, " cold " center " phenomenon; so; even activated coke is regenerated, the adsorption efficiency of the activated coke after the regeneration is still lower is because only there is the surface part of activated coke to be regenerated; and the part inside of activated coke does not obtain effective thermal regeneration; and adopt equipment volume large, and thermal regeneration speed is slow, and the thermal efficiency is low; can not satisfy the demand of high-speed and continuous production, can't effectively reduce production costs so that activated coke is prone to.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of activated coke movable desorption regenerative system is provided, described system can be to the inside and outside simultaneously heating of activated coke, heating fast, evenly, and it is temperature required to reduce activated coke regeneration, the loss of less activated coke in regenerative process, the continuous on-line regeneration of realization activated coke.Simultaneously, the present invention also provides a kind of method of utilizing described activated coke movable desorption regenerative system to carry out the regeneration of activated coke movable desorption.
In order to achieve the above object, the present invention proposes a kind of activated coke movable desorption regenerative system, described movable desorption regenerative system comprises:
The desorption reaction tower, described desorption reaction tower comprises:
One is used for activated coke is conveyed into the feed arrangement of desorption reaction tower;
One for the gas purging storehouse that activated coke is purged;
One for the heating using microwave storehouse that activated coke is heated;
One is used for the S0 of absorption in the desorption activated coke
2Regeneration air guide storehouse;
One for the cooling device that the activated coke after the regeneration is cooled off;
One discharger for the discharge of the activated coke after will regenerating desorption reaction tower;
Described feed arrangement, gas purging storehouse, heating using microwave storehouse, regeneration air guide storehouse, cooling device and discharger from top to bottom are linked in sequence and form.
By the heating using microwave storehouse is set, activated coke is adopted microwave heating regeneration, microwave heating temperature is even, desorption rate is fast, and the heating penetration power is strong, compares with the electronics loss of activated coke, the electronics loss of the adsorbate that is evaporated is higher, therefore can realize the selection heating to adsorbate, and conduct to carry out by the heat of material itself unlike traditional heating means, thereby avoid the activated coke " appearance of cold " center ".And owing to the inside and outside difference that simultaneously heats and be adsorbed on Absorption of Medium microwave activated coke on of microwave to activated coke, make temperature required the decreasing of activated coke regeneration, drop to from about 300 ℃ of traditional heating and just to begin to produce a large amount of gases about 250 ℃, the activated coke thermal regeneration time was reduced to 1～2 hour by former 2～3 hours.Heating using microwave is consuming time short, and the plant area area is little, and productivity ratio effectively improves.
Further preferably, the quantity of described desorption reaction tower is one or more, is connected in parallel between described a plurality of desorption reaction towers.
The parallel connection of a plurality of desorption reaction towers can realize the regeneration of extensive activated coke, realizes the maximization of described movable desorption regenerative system, realizes Large Scale Industrial Process flue gas or discarded processing.
Further preferably, described feed arrangement comprises: charging blocking valve, the first air sealing valve and feed hopper;
Describedly advance the first air sealing valve and be connected with feed hopper by the charging blocking valve;
Described feed hopper lower end is connected with the gas purging storehouse;
Described gas purging storehouse one end is connected with the second air sealing valve;
Described discharger comprises: discharging bin, discharging blocking valve and the 3rd air sealing valve;
Described cooling device lower end is connected with discharging bin, and described the 3rd air sealing valve is connected with discharging bin by the discharging blocking valve.
Bivalve hermetically-sealed construction at feed end and discharge end employing air sealing valve and blocking valve passes into simultaneously inert gas and protects sealing and starvation, Effective Raise activated coke regeneration efficiency.
Charging blocking valve and discharging blocking valve are selected " solid material rotary valve ", and closing process is without shearing phenomenon, and wearing and tearing are slight, help to keep charging blocking valve and discharging blocking valve bubble-tight stable, and namely air-tightness can not reduce because of the prolongation of valve service time.Do not have the shearing phenomenon in charging blocking valve and the discharging blocking valve running, drive motors need not overcome shearing force, and power consumption is little; Wear and tear slight long service life in charging blocking valve and the discharging blocking valve course of work; Sealing surface need not carry out expensive Wear-resistant Treatment, and cost is low.
Further preferably, described movable desorption regenerative system also comprises: one is used for SO
2The SO that recycles
2Recycling system;
Described regeneration air guide storehouse one end is connected with aspiration pump by the desorption gas outlet, is provided with control valve in the described desorption gas outlet;
Described SO
2Recycling system is connected with aspiration pump;
Described cooling device one end is connected with cooling blower.
Aspiration pump is set, the SO that desorption can be gone out
2From the desorption reaction tower, effectively derive the corrosion that alleviates equipment.Simultaneously, the pressure parameter by in the aspiration pump control dealkylation reaction tower makes whole desorption and regeneration process optimization operation, reaches efficient desorption.SO is set
2Recycling system can realize SO
2Recycling, energy-conserving and environment-protective.
Further preferably, be provided with the cooling device outlet on the described cooling device, described cooling device outlet is connected with pre-heating cabin by pipeline;
Described pre-heating cabin lower end is connected with feed arrangement.
Set up pre-heating cabin, can realize taking full advantage of of heat that cooling in the cooling device is produced after the activated coke, the activated coke that is positioned at feed arrangement is carried out preheating, with further energy savings, reduce energy consumption.
Further preferably, described heating using microwave storehouse comprises: one or more microwave reactors; Microwave components;
Described microwave components is arranged at the microwave reactor both sides; Described microwave reactor is rectangular tube or cylindrical tube.
Being used in combination of a plurality of microwave reactors adopted in the heating using microwave storehouse, easily realizes the maximization of described movable desorption regenerative system, processes to tackle extensive activated coke regeneration.Microwave reactor is set to rectangular tube or round tube, so that activated coke can flow in pipe, ensures that the smooth and easy of activated coke flows.
Simultaneously, the present invention also provides a kind of method of utilizing described activated coke movable desorption regenerative system activated coke to be carried out movable desorption regeneration, and described method comprises the steps:
A, purging
Absorption there is SO
2Activated coke send into the desorption reaction tower by feed arrangement, described activated coke enters the heating using microwave storehouse by the gas purging storehouse downwards, described gas purging storehouse purges the activated coke in the heating using microwave storehouse;
B, heating and desorption
When activated coke is purged, by the heating using microwave storehouse activated coke is heated, activated coke is heated to 300～400 ℃, the activated coke after the heating enters regeneration air guide storehouse, the SO of absorption in removal activity Jiao
2
C, cooling
Remove SO
2After activated coke enter cooling device downwards and cool off, be cooled to 100～140 ℃ after, activated coke is discharged by discharger, finally finishes activated coke regeneration.
Further preferably, in steps A, by the first air sealing valve feed arrangement is carried out sealing gland, by the second air sealing valve sealing gland is carried out in the gas purging storehouse;
The gas purging storehouse is nitrogen to the gas that activated coke purges, and described nitrogen flow is 0.1～0.2m
3/ s;
In step B, the SO that removes
2Can drain into described SO by aspiration pump
2Recycling system is recycled;
In step C, by the 3rd air sealing valve discharger is carried out sealing gland;
By cooling blower the activated coke in the cooling device is cooled off;
Described the first air sealing valve, the second air sealing valve and the 3rd air sealing valve all are connected with inert gas, and the flow of described inert gas is respectively 10～15m
3/ h.
Further preferably, in the steps A, before activated coke enters pay-off, absorption there is SO
2Activated coke send into pre-heating cabin and carry out preheating.
Beneficial effect of the present invention is:
In the prior art, in the thermal regeneration process of activated coke, usually adopt the heat exchange heating technique that activated coke is heated, this heating technique only can be carried out the heat exchange heating to the activated coke surface, can't effectively heat inside activated coke, so that activated coke is prone to " cold " center " phenomenon; the i.e. activated coke that this kind heat exchange heating technique can only regenerating surface; and inside the activated coke of can't regenerating; so; even activated coke is regenerated, the adsorption efficiency of the activated coke after the regeneration is still lower, because only there is the surface part of activated coke to be regenerated; and the part inside of activated coke does not obtain effective thermal regeneration, cause activated coke regeneration inefficiency, can not be complete, whole regeneration activity is burnt, and adopts equipment volume large, thermal regeneration speed is slow, the thermal efficiency is low, can not satisfy the demand of high-speed and continuous production, can't effectively reduce production costs.
In this patent, the inventor is creationary by adopting the heating using microwave storehouse that activated coke is carried out heating using microwave, compare with traditional heat exchange regeneration techniques, the introducing of heat directly enters by the transmission of electromagnetic energy, microwave heating temperature is even, desorption rate is fast, the heating penetration power is strong, compare with the electronics loss of activated coke, the electronics loss of the adsorbate that is evaporated (being the material that activated coke is adsorbed) is higher, therefore can realize the selection heating to adsorbate, and conduct to heat by the heat of material itself unlike traditional heat exchange heating means, thereby avoided the material " appearance of cold " center ", and heating using microwave is consuming time short; the plant area area is little, and productivity ratio improves greatly.Because microwave is to the inside and outside simultaneously heating of activated coke and the difference that is adsorbed on activated coke Absorption of Medium microwave, regeneration temperature is decreased, drop to from about 300 ℃ of traditional heating and just to begin to produce a large amount of gases about 250 ℃, the activated coke thermal regeneration time was reduced to 1～2 hour by former 2～3 hours.The present invention can also use the occasion at solid formation regeneration desorption in addition.Its advantage is in particular in: the characteristic by heating using microwave makes the activated coke regeneration efficiency high, and reproduction speed is fast, and regeneration temperature reduces, and equipment volume reduces, and is energy-conservation.A plurality of microwave reactor combinations are adopted in the heating using microwave storehouse, easily realize maximizing.The heating using microwave storehouse, the integrated comprehensive utilization of energy is convenient in the relatively independent setting of cooling device.The aspiration pump combination in inert gas purge and regeneration air guide storehouse is bled thoroughly desorption and regeneration gas, and desorption efficient is high, and equipment corrosion is light, and the life-span is long.By systematic parameter control flexibly, overall process realizes automation.By microwave power is regulated, realize the accurate control of heating using microwave storehouse reactor regeneration temperature parameter, by the control tower internal pressure parameter of aspiration pump, optimize operation simultaneously, reach efficient desorption.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and easily understand.
Fig. 1 is the structural representation of a kind of activated coke movable desorption regenerative system provided by the present invention.
Fig. 2 is the structural representation in heating using microwave storehouse in a kind of activated coke movable desorption regenerative system provided by the present invention.
Fig. 3 is the structural representation of setting up pre-heating cabin in a kind of activated coke movable desorption regenerative system provided by the present invention.
Fig. 4 is the structural representation that is connected in parallel between a plurality of desorption reaction towers in a kind of activated coke movable desorption regeneration decorum provided by the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, described feed arrangement is arranged on the top of desorption reaction tower, described gas purging storehouse 9, heating using microwave storehouse 10, regeneration air guide storehouse 11, cooling device 12 from top to bottom are arranged on the body of the tower place of desorption reaction tower, described discharger is arranged on the bottom of desorption reaction tower, and described feed arrangement, gas purging storehouse 9, heating using microwave storehouse 10, regeneration air guide storehouse 11, cooling device 12 and discharger from top to bottom are linked in sequence and form.
Wherein, described feed arrangement comprises: charging blocking valve 7, the first air sealing valve 1 and feed hopper 8; Describedly advance the first air sealing valve 1 and be connected with feed hopper 8 by charging blocking valve 7.
Described feed hopper 8 lower ends are connected with gas purging storehouse 9; Described gas purging storehouse 9 one ends are connected with the second air sealing valve 2.
As shown in Figure 2, described heating using microwave storehouse 10 comprises: one or more microwave reactors 1001; Microwave components 1002;
Described microwave components 1002 is arranged at microwave reactor 1001 both sides;
Described microwave reactor 1001 is rectangular tube or cylindrical tube.Described microwave reactor 1001 arrangements are vertically to arrange.
Described regeneration air guide storehouse 11 1 ends are connected with aspiration pump 4 by desorption gas outlet 1101, and described desorption gas exports on 1101 and is provided with control valve; Described SO
2 Recycling system 16 is connected with aspiration pump 4; Described cooling device 12 1 ends are connected with cooling blower 5.
As shown in Figure 3, be provided with cooling device outlet 15 on the described cooling device 12, described cooling device outlet 15 is connected with pre-heating cabin 3 by pipeline; Described pre-heating cabin 3 is connected with feed arrangement.
Described discharger comprises: discharging bin 13, discharging blocking valve 14 and the 3rd air sealing valve 6;
Described cooling device 12 lower ends are connected with discharging bin 13, and described the 3rd air sealing valve 6 is connected with discharging bin 13 by discharging blocking valve 14.
The quantity of described desorption reaction tower is one or more, is connected in parallel (as shown in Figure 4) between described a plurality of desorption reaction towers.
The mode of being connected in parallel between described a plurality of desorption reaction tower is:
The first air sealing valve 1 of each desorption reaction tower forms by pipeline and is connected in parallel, the second air sealing valve 2 of each desorption reaction tower forms by pipeline and is connected in parallel, the 3rd air sealing valve 6 of each desorption reaction tower forms by pipeline and is connected in parallel, the 4th air sealing valve 16 of each desorption reaction tower forms by pipeline and aspiration pump 4 and is connected in parallel, and the 5th air sealing valve 17 of each desorption reaction tower forms by pipeline and cooling blower 5 and is connected in parallel.
Be provided with control valve in the described desorption gas outlet 1101.
Wherein, the solid material rotary valve that provides in the number of patent application 200710019300.4 is provided for described charging blocking valve 7 and discharging blocking valve 14, this solid material rotary valve closing process is without shearing phenomenon, wearing and tearing are slight, help to keep solid material rotary valve bubble-tight stable, namely air-tightness can not reduce because of the prolongation of valve service time.Do not have the shearing phenomenon in the solid material rotary valve running, drive motors need not overcome shearing force, and power consumption is little; Wear and tear slight long service life in the rotary valve course of work; Sealing surface need not carry out expensive Wear-resistant Treatment, and the solid material rotary valve cost is low.
The method of utilizing described activated coke movable desorption regenerative system activated coke to be carried out movable desorption regeneration, described comprising the steps:
A, purging
Absorption there is SO
2Activated coke send into the desorption reaction tower by feed arrangement, described activated coke enters heating using microwave storehouse 10 by gas purging storehouse 9 downwards, the activated coke in 9 pairs of heating using microwave storehouses, described gas purging storehouse 10 purge; Carry out sealing gland by 1 pair of feed arrangement of the first air sealing valve, carry out sealing gland by 2 pairs of gas purging storehouses of the second air sealing valve 9; Gas purging storehouse 9 is nitrogen to the gas that activated coke purges, and described nitrogen flow is 0.1～0.2m
3/ s;
Preferably, before activated coke enters pay-off, absorption there is SO
2Activated coke send into pre-heating cabin 3 and carry out preheating.
B, heating and desorption
When activated coke is purged, heat by the 10 pairs of activated coke in heating using microwave storehouse, activated coke is heated to 300～400 ℃, the activated coke after the heating enters regeneration air guide storehouse 11, the SO of absorption in removal activity Jiao
2The SO that removes
2Drain into described SO by aspiration pump 4
2 Recycling system 16 is recycled;
C, cooling
Remove SO
2After activated coke enter cooling device 12 downwards and cool off, cool off by the activated coke in 5 pairs of cooling devices of cooling blower 12, be cooled to 100～140 ℃ after, activated coke is discharged by discharger, carry out sealing gland by 6 pairs of dischargers of the 3rd air sealing valve, finally finish activated coke regeneration.
Described the first air sealing valve 1, the second air sealing valve 2 and the 3rd air sealing valve 6 all are connected with inert gas, and the flow of described inert gas is respectively 10～15m
3/ h.
The active coke desulphurizing system that is used for boiler flue gas purification adopts the microwave heating regeneration desorption, and owing to the activated coke temperature that enters described activated coke movable desorption regenerative system is higher, the cooling of activated coke can adopt air directly to cool off, then emptying scheme.Activated coke is under the effect of deadweight, mobile from top to bottom, activated coke in 10 purge nitrogen to the heating using microwave storehouse via feed hopper 8, gas purging storehouse 9(), heating using microwave storehouse 10, activated coke is heated to 300～400 ℃, activated coke enters regeneration air guide storehouse 12, the SO that the activated coke after the heated by microwave is adsorbed via microwave applicator 1001
2By effective desorption, desorption gas is driven lower in the sweep gas in gas purging storehouse 9, is derived the cavity on 12 tops, storehouse by regeneration gas and extracts out through aspiration pump semi-finals system, sends into SO
2Recycling system 16 is recycled.
Activated coke behind the desorption then continues to move down, and enters cooling device 12.In the cooling device 12, activated coke is under the effect of cooling medium (cooling blower 5), activated coke loses heat energy, slowly move down with activated coke, the temperature of activated coke can progressively reduce, when entering about 350 ℃, when leaving cooling device 12, to be reduced to about 120 ℃, discharge the desorption reaction tower through discharging blocking valve 14, finally realize the regeneration of activated coke.
The activated coke desorption and regeneration need to carry out under sealing and oxygen free condition, on the charging blocking valve 7 of desorption reaction tower and discharging blocking valve 14, increase respectively the first air sealing valve 1 and the 3rd air sealing valve 6, seal by inert gas, the first air sealing valve 1 and the 3rd air sealing valve 6 gas flows are respectively 10～15m
3/ h.
Efficient in order to guarantee desorption, need to pass into nitrogen from gas purging storehouse 9, gas flow is 0.1～0.2m
3/ s.
When system operated, activated coke entered via feed hopper 8 from charging blocking valve 7, behind the desorption reaction tower, flowed out from discharging blocking valve 14, continued to use adsorption desulfurize.Can realize the accurate control of the microwave reactor 1001 regeneration temperature parameters in heating using microwave storehouse 10 by the power adjusting to microwave reactor 1001, by aspiration pump 4 control desorption reaction tower internal pressure parameters, optimize operation simultaneously, reach efficient desorption.
As shown in Figure 3, when the active coke desulphurizing technology is used for other industrial tail gas desulfurization, because gas temperature is lower, such as sulfuric acid production plant tail gas about 70 ℃, when adopting microwave heating regeneration, can before entering the desorption reaction tower, activated coke increase pre-heating cabin 3, the heat of cooling device 12 cooling activated coke generations is used for the preheating of activated coke, with further energy-conservation, be connected with pre-heating cabin 3 by pipeline by the cooling device of cooling device 12 outlet 15 activated coke is carried out preheating, the gas after the preheating enters desulfurizer, and activated coke enters the desorption reaction tower, all the other methods are regenerated to activated coke with embodiment 1.
When the regeneration amount of activated coke is very large; can adopt the method for two above desorption reaction towers parallel connection; specifically desorption gas outlet 1101 arranges to compile behind the control valve and enters aspiration pump 4; cooling medium by cooling blower 5 enters each desorption reaction tower by pipeline; by control system the microwave power in heating using microwave storehouse 9 is controlled; and then the microwave reactor 1001 interior temperature in each heating using microwave storehouse 9 are controlled; can realize the regeneration of extensive activated coke, realize the maximization of desorption reaction device.Finish Large Scale Industrial Process flue gas or discarded processing.Specifically take scheme to implement according to project situation, reactive coke regeneration method is with embodiment 1.
The above-described specific embodiment is exemplary; in order to make those skilled in the art can better understand this patent content; be not so namely limit the protection domain of this patent; everyly disclose any equivalent transformation of doing of spirit according to this patent; directly or indirectly be used in other relevant technical field, all fall into this patent protection domain.
Claims (9)
1. an activated coke movable desorption regenerative system is characterized in that, described movable desorption regenerative system comprises:
The desorption reaction tower, described desorption reaction tower comprises:
One is used for activated coke is conveyed into the feed arrangement of desorption reaction tower;
One for the gas purging storehouse (9) that activated coke is purged;
One for the heating using microwave storehouse (10) that activated coke is heated;
One is used for the S0 of absorption in the desorption activated coke
2Regeneration air guide storehouse (11);
One for the cooling device (12) that the activated coke after the regeneration is cooled off;
One discharger for the discharge of the activated coke after will regenerating desorption reaction tower;
Described feed arrangement, gas purging storehouse (9), heating using microwave storehouse (10), regeneration air guide storehouse (11), cooling device (12) and discharger from top to bottom are linked in sequence and form.
2. a kind of activated coke movable desorption regenerative system according to claim 1 is characterized in that,
The quantity of described desorption reaction tower is one or more, is connected in parallel between described a plurality of desorption reaction towers.
3. a kind of activated coke movable desorption regenerative system according to claim 1 is characterized in that,
Described feed arrangement comprises: charging blocking valve (7), the first air sealing valve (1) and feed hopper (8);
Describedly advance the first air sealing valve (1) and be connected with feed hopper (8) by charging blocking valve (7);
Described feed hopper (8) lower end is connected with gas purging storehouse (9);
Described gas purging storehouse (9) one ends are connected with the second air sealing valve (2);
Described discharger comprises: discharging bin (13), discharging blocking valve (14) and the 3rd air sealing valve (6);
Described cooling device (12) lower end is connected with discharging bin (13), and described the 3rd air sealing valve (6) is connected with discharging bin (13) by discharging blocking valve (14).
4. a kind of activated coke movable desorption regenerative system according to claim 1 is characterized in that,
Described movable desorption regenerative system also comprises: one is used for SO
2The SO that recycles
2Recycling system (16);
Described regeneration air guide storehouse (11) one ends are connected with aspiration pump (4) by desorption gas outlet (1101), are provided with control valve in the described desorption gas outlet (1101);
Described SO
2Recycling system (16) is connected with aspiration pump (4);
Described cooling device (12) one ends are connected with cooling blower (5).
5. a kind of activated coke movable desorption regenerative system according to claim 1 is characterized in that,
Be provided with cooling device outlet (15) on the described cooling device (12), described cooling device outlet (15) is connected with pre-heating cabin (3) by pipeline;
Described pre-heating cabin (3) is connected with feed arrangement.
6. a kind of activated coke movable desorption regenerative system according to claim 1 is characterized in that,
Described heating using microwave storehouse (10) comprising:
One or more microwave reactors (1001);
Microwave components (1002);
Described microwave components (1002) is arranged at microwave reactor (1001) both sides;
Described microwave reactor (1001) is rectangular tube or cylindrical tube.
7. one kind is utilized the activated coke movable desorption regenerative system that each provides in the claim 1～6 that activated coke is carried out the method that movable desorption is regenerated, and it is characterized in that, described method comprises the steps:
A, purging
Absorption there is SO
2Activated coke send into the desorption reaction tower by feed arrangement, described activated coke enters heating using microwave storehouse (10) by gas purging storehouse (9) downwards, described gas purging storehouse (9) purges the activated coke in heating using microwave storehouse (10);
B, heating and desorption
When activated coke is purged, by heating using microwave storehouse (10) activated coke is heated, activated coke is heated to 300～400 ℃, the activated coke after the heating enters regeneration air guide storehouse (11), the SO of absorption in removal activity Jiao
2
C, cooling
Remove SO
2After activated coke enter cooling device (12) downwards and cool off, be cooled to 100～140 ℃ after, activated coke is discharged by discharger, finally finishes activated coke regeneration.
8. a kind of activated coke movable desorption renovation process according to claim 7 is characterized in that,
In steps A, by the first air sealing valve (1) feed arrangement is carried out sealing gland, by the second air sealing valve (2) gas purging storehouse (9) are carried out sealing gland;
Gas purging storehouse (9) is nitrogen to the gas that activated coke purges, and described nitrogen flow is 0.1～0.2m
3/ s;
In step B, the SO that removes
2Drain into described SO by aspiration pump (4)
2Recycling system (16) is recycled;
In step C, by the 3rd air sealing valve (6) discharger is carried out sealing gland;
By cooling blower (5) activated coke in the cooling device (12) is cooled off;
Described the first air sealing valve (1), the second air sealing valve (2) and the 3rd air sealing valve (6) all are connected with inert gas, and the flow of described inert gas is respectively 10～15m
3/ h.
9. a kind of activated coke movable desorption renovation process according to claim 7 is characterized in that,
In the steps A, before activated coke enters pay-off, absorption there is SO
2Activated coke send into pre-heating cabin (3) and carry out preheating.
Priority Applications (1)
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|---|---|---|---|
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